Calcipotriol Impurity 29 CAS CATO-C4X-122229
| CAS No. | CATO-C4X-122229 |
| Molecular Formula | C39H66O3Si2 |
| Molecular Weight | 639.11 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Calcipotriol Impurity 29 is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Calcipotriol Impurity 29 (CAS CATO-C4X-122229), a pharmacopoeial impurity reference standard (molecular formula C39H66O3Si2, MW 639.11 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Calcipotriol Impurity 29 (C39H66O3Si2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), Calcipotriol Impurity 29 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C39H66O3Si2 |
| Molecular Weight | 639.11 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Calcipotriol Standards
- Calcipotriol Impurity 11 (CAS 112849-17-9)
- Calcipotriol Impurity 30 (CAS 115648-68-5)
- Calcipotriol Impurity 31 (CAS 866406-02-2)
- Calcipotriol Impurity 23 (CAS 1630745-25-3)
- Calcipotriol Impurity 51 (CAS 910133-69-6)
- Calcipotriol Impurity 10 (CAS 112849-27-1)
- Calcipotriol EP Impurity F (CAS 112875-61-3)
- Calcipotriol Impurity 17 (CAS 115540-28-8)
Recommended Standards
- Cholesteryl heptadecanoate (CAS 24365-37-5)
- (SP-5-13)-Chloro[[2,2′-[(1R,2R)-1,2-cyclohexanediylbis[(nitrilo-κN)methylidyne]]bis[4,6-bis(1,1-dimethylethyl)phenolato-κO]](2-)]cobalt (CAS 376652-60-7)
- Bromhexine Impurity 49 (CAS CATO-C4X-106049)
- (SP-5-13)-Chloro[[2,2′-[(1S,2S)-1,2-cyclohexanediylbis[(nitrilo-κN)methylidyne]]bis[4,6-bis(1,1-dimethylethyl)phenolato-κO]](2-)]cobalt (CAS 630404-46-5)
- Progesterone Impurity 64 (CAS 66875-13-6)
- Selegiline hydrochloride EP Impurity A (CAS 7632-10-2)
- Sildenafil Impurity 52 (CAS CATO-C4X-112852)
- 5,5-Difluorooxan-3-amine (CAS 1418199-75-3)
- 4-Amino-2-bromobenzamide (CAS 609783-21-3)
- Benzyl 3-((4-cyanophenyl)thio)azetidine-1-carboxylate (CAS 2306278-03-3)
- 3-Phenylbutan-2-ol (CAS 52089-32-4)
- Lemborexant Impurity 77 (CAS CATO-C4X-304277)
- 4-Fluoro-N-(quinoxalin-6-yl)benzenesulfonamide (CAS 478079-12-8)
- Des-[Oct-γ-Glu-AEEA-AEEA]-Semaglutide (CAS CATO-C4X-2226112)
Why CATO?
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